--- Forwarded Message from James Hogg <[log in to unmask]> ---

>Date: Wed, 22 May 2002 11:57:15 -0400
>Subject: Re: #6688.3 Streaming video HELP! (!)
>From: James Hogg <[log in to unmask]>
>To: Language Learning and Technology International Information Forum    <[log in to unmask]>
>In-Reply-To: <[log in to unmask]>

------------------

On Tuesday, May 21, 2002, at 01:22  PM, LLTI-Editor wrote:

> --- Forwarded Message from [log in to unmask] ---
>
>> From: [log in to unmask]
>> Date: Fri, 17 May 2002 11:04:47 EDT
>> Subject: Re: #6688 Streaming video HELP!
>> To: [log in to unmask]
>
> Hello:
>
> I could be very mistaken and technically out of date but I have not 
> heard of
> video operating over a 10Mbps wireless network. Audio, yes. Video 
> requires a
> 100Mpbs FastEthernet Network wired or wireless. It makes no difference 
> which
> video file type or video player used on client side.
>
> If I am a tad behind the times then please advise.
>
> John Dowling
>
>
John,

This may be true for uncompressed video, but all streaming video is 
compressed using some codec and most codecs allow for adjustments so the 
transfer rate can be modified. Even Digital Video (DV) is compressed. In 
streaming video, for example, you adjust the size of the movie window, 
frame rate, image quality, how the audio is compressed, etc. There are 
many audio and video codecs available and more are being developed.

A company called Terran had a web page dedicated to describing codecs 
called "codec central." They used to have a product called Media Cleaner 
which they sold to Media 100 which in turn sold it to Discreet. (Now  
Media Cleaner is just called Cleaner.) I just checked Discreet's site 
and they say they are reviewing the codec central information and will 
post it in the future. Here is the link for that:

http://www.discreet.com/codeccentral/

Hope this helps, Jim